وَلَبِثُواْ فِي كَهۡفِهِمۡ ثَلَٰثَ مِاْئَةٖ سِنِينَ وَٱزۡدَادُواْ تِسۡعٗا
They (Ahl AL- Kitab surmised that they -the young men-) remained dormant in the Cave for three hundred years -solar calendar- with an additional nine years -lunar calendar
Author: Almuntakhab Fi Tafsir Alquran Alkarim